520 



Sorghum midge, life history and habits, 



205-207. 

 Southern corn root-worm, 213. 



fern cutworm, 183. 

 Sow-thistle, 380. 

 Soy beans, 151. 

 Sphenophorus parvulus, 503. 

 Spinach, 364. 

 Spiny oak caterpillar, 211. 

 Spiraea, 185. 



prunifolia, 404. 



salicifolia, 490. 



sawfiy, 185. 



vanhouttei, 185, 490. 

 Spring canker-worm, 185. 

 Springtails. 205. 

 Spruce, 374. 

 Spruce, Douglas, 372. 

 Squash, 404. 



bug, 181, 303. 



lady beetle, 214, 303. 



^dnes, 18. 

 Stable fly, 303. 

 Stalk borers, 167. 

 Start, E. A., Stone, G. E., and Fernald, 



H. T., 325. 

 State nursery laws of Oklahoma and 



their efTect, 82-84. 

 Steam spraying outfit, 40. 

 Stewart, J. P., 108. 

 Stictonotus isosomatus^ 202, 203. 

 Strawberry, 97, 98, 195, 215. 273, 361, 

 478. 



root louse, 215. 

 Striped cucumber beetle, 180. 214. 



garden caterpillar, 303. 



maple worm, 211. 

 Stropharia semiglobata, 205. 

 Sturmia inquinita, 291. 

 Sugar, 230, 268, 269. 



cane, 213, 272, 361. 



cane beetle, 213. 



cane insects, 213. 

 Sulfate of nicotine, 31. 209, 210. 

 Sulfid of arsenic, 29, 30. 31. 

 Sulphur, 17, 432; dioxid, 142. 

 Sulphuric acid, 86, 199. 

 Sun scald, 33, 189. 

 Sunflower, 151, 168. 

 Superparasitism ; Important factor in 

 the natural control of insects, 

 88-97. 

 Sweet aly.ssum, 184. 



potato borer, 214. 

 Sweetened arsenicals, 171. 

 Sycamore, 413. 

 Symmerista albifrons, 148. 

 Symons, T. B., 236-241. 

 Symphoricarpus racemosus, 376. 

 Syrphid flies, 374. 



arcuatus, 374. 



opinator, 374. 



ribesii, 380. 



Tabanus, 217. 

 Tachina mella, 288, 291. 

 Tachinids, 92, 96. 



Tachinid flies, 148; larvse, 88; para- 

 sites, 392; pupation and hiber- 

 nation, 283-295. 

 Tachypterellus (Anthonomus) quadri- 



gibbus, 357. 

 Tamarix, 185. 

 Tanglefoot, 168, 430, 435. 

 Tannin, 230. 

 Tar, 39. 



Tarnished plant-bug, 477-479. 

 Taylor, E. P., 107. 

 Telenomus graptse, 390, 393. 

 Temperature, 57. 

 Temperature and insect growth, 113— 



140. 

 Tenebrio molitor, 120. 

 Tenebrioides mauritanicus, 50, 214. 

 Ten-lined potato beetle in Montana, 



178-179. 

 Tenodera sinensis, 274. 

 Tetrachloride of carbon, 104. 

 Tetranychus bimaculatus, 181, 186. 



bimaculatus and Bryobia prat en- 

 sis, life history and control^ 

 430-434. 

 Tetrastichus, 206. 



asparagi, 258. 



hunteri, 453, 456. 



xanthomelsenae, 257. 

 Texas fever tick, 333. 

 Thecodiplosis quercifolia, 353. 

 Theobald, F. V., 107. 

 Theronia, 90. 

 Thistle, 166, 404. 

 Thomas. Cvrus. 383. 

 Thompson, W. R., 283-295. 436. 

 Thrips tabaci, 182, 183, 214. 

 Tiger lily, 166, 168. 

 Tilia americana, 367, 376. 

 Timber, 27. 

 Timothy, 503. 

 Titus, E. G., 459-470. 

 Tobacco, 135, 181, 198, 199, 200, 201, 

 202. 



extracts, 207. 



waste, 361. 



worm, 434. 

 Tomato, 165, 167, 168, 182. 



worm, 434. 

 Tomicus typographus, 121. 

 Tortrix citrana, 402. 

 Toxoptera, 116. 



graminum, 135. 

 Treacle, 267. 



Tribolium ferrugineum, 49, 214. 

 Tricholyga grandis, 288, 289. 

 Trifolium hybridum, 459. 



incarnatum, 459. 



pratense, 459. 



repens, 459. 



